CVP BASIC VISION EXAM PREP TEST BANK
WITH UPDATED QUESTIONS AND
ANSWERS
●● Lens
Answer: A structure in the eye that helps focus an image on the retina
(292)
●● Refraction
Answer: The bending of light rays by a change in density of a medium,
such as the cornea and lens of the eyes (292)
●● Ciliary Muscle
Answer: One of the muscles that controls the shape of the lens inside the
eye, focusing an image on the retina (292)
●● Accommodation
Answer: The process of focusing by the ciliary muscles and the lens to
form a sharp image on the retina (292)
●● Pupil
Answer: The aperture, formed by the iris, that allows light to enter the
eye (292)
,●● Iris
Answer: The circular structure of the eye that provides an opening to
form the pupil (292)
●● Extraocular Muscle
Answer: One of the muscles attached to the eyeball that controls its
position and movements (292)
●● Retina
Answer: The receptive surface inside the eye that contains
photoreceptors and other neurons (293)
●● Photoreceptors
Answer: Neural cells in the retina that respond to light (293)
●● Rods
Answer: A class of light-sensitive receptor cells in the retina that are
most active at low levels of light (293)
●● Cones
Answer: A class of photoreceptors in the retina that are responsible for
color vision (293)
, ●● Bipolar Cells
Answer: A class of interneurons of the retina that receive information
from rods and cones and pass the information to retinal ganglion cells
(293)
●● Ganglion Cells
Answer: A class of cells in the retina whose axons form the optic nerve
(293)
●● Optic Nerve
Answer: Cranial Nerve II; the collection of ganglion cell axons that
extend from the retina to the optic chasm (293)
●● Horizontal Cells
Answer: Specialized retinal cells that contact both the receptor cells and
the bipolar cells (293)
●● Amacrine Cells
Answer: Specialized retinal cells that contact both the bipolar cells and
the ganglion cells, and are especially significant in inhibitory
interactions within the retina (293)
●● Scotopic System
WITH UPDATED QUESTIONS AND
ANSWERS
●● Lens
Answer: A structure in the eye that helps focus an image on the retina
(292)
●● Refraction
Answer: The bending of light rays by a change in density of a medium,
such as the cornea and lens of the eyes (292)
●● Ciliary Muscle
Answer: One of the muscles that controls the shape of the lens inside the
eye, focusing an image on the retina (292)
●● Accommodation
Answer: The process of focusing by the ciliary muscles and the lens to
form a sharp image on the retina (292)
●● Pupil
Answer: The aperture, formed by the iris, that allows light to enter the
eye (292)
,●● Iris
Answer: The circular structure of the eye that provides an opening to
form the pupil (292)
●● Extraocular Muscle
Answer: One of the muscles attached to the eyeball that controls its
position and movements (292)
●● Retina
Answer: The receptive surface inside the eye that contains
photoreceptors and other neurons (293)
●● Photoreceptors
Answer: Neural cells in the retina that respond to light (293)
●● Rods
Answer: A class of light-sensitive receptor cells in the retina that are
most active at low levels of light (293)
●● Cones
Answer: A class of photoreceptors in the retina that are responsible for
color vision (293)
, ●● Bipolar Cells
Answer: A class of interneurons of the retina that receive information
from rods and cones and pass the information to retinal ganglion cells
(293)
●● Ganglion Cells
Answer: A class of cells in the retina whose axons form the optic nerve
(293)
●● Optic Nerve
Answer: Cranial Nerve II; the collection of ganglion cell axons that
extend from the retina to the optic chasm (293)
●● Horizontal Cells
Answer: Specialized retinal cells that contact both the receptor cells and
the bipolar cells (293)
●● Amacrine Cells
Answer: Specialized retinal cells that contact both the bipolar cells and
the ganglion cells, and are especially significant in inhibitory
interactions within the retina (293)
●● Scotopic System
